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Finding the Fourth Proportional to 245,358.94, 368,037.96 and 76,892.18

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Solution

The fourth proportional to 245,358.94, 368,037.96 and 76,892.18 is: 115,338.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,358.94 : 368,037.96 = 76,892.18 : x
  2. Step 2: Convert to fraction form
    245,358.94/368,037.96 = 76,892.18/x
  3. Step 3: Cross multiply
    245,358.94x = 368,037.96 × 76,892.18
  4. Step 4: Simplify right side
    245,358.94x = 28,299,241,067.15
  5. Step 5: Solve for x
    x = 28,299,241,067.15/245,358.94
  6. Step 6: Final answer
    x = 115,338.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.